JP2006517861A - Nozzle device - Google Patents

Abstract

The present invention relates to a pumping nozzle device and a method of manufacturing the same. The dispenser nozzle of the present invention has a body that defines an internal chamber, the chamber having an inlet through which fluid can be drawn into the chamber and an outlet through which fluid present in the chamber can be discharged from the nozzle. Have The inlet includes an inlet valve and the outlet includes an outlet valve. The trigger handle of the trigger actuator can be pulled to deform or displace a portion of the device body that defines the chamber, thereby compressing the chamber, triggering fluid ejection, and dispensing fluid from the nozzle. The outlet includes an outlet passage that leads from the chamber to an outlet orifice. Preferably, one or more spray modification mechanisms are formed in the outlet passage.

Description

  The present invention relates to an actuator for a nozzle device, and more particularly, but not exclusively, to a trigger-actuated (actuated by a trigger-type actuator) nozzle device and a method of manufacturing such a device.

  Trigger actuated nozzle devices (hereinafter also simply referred to as “nozzle devices”, “nozzles”, “devices”, “dispenser nozzles” or “dispensers”) dispense fluid (dispensing, dispensing) from non-pressurized containers It is commonly used to provide a means that can be).

  However, conventional trigger actuated nozzle devices tend to be complex in structure and typically consist of a number of components (usually 10-14 individual parts). As a result, such nozzle devices are expensive to manufacture due to the amount of material required to form the individual components and the assembly steps for those components.

Therefore,
(I) the structure is simple,
(Ii) The number of parts used is small, and
(Iii) Easy to operate,
There is a need for a trigger actuated nozzle device.

The present invention contemplates solving at least some of the above-mentioned problems associated with conventional trigger-actuated nozzle devices. To this end, the present invention in its first aspect is a pumping nozzle device adapted to dispense fluid from a container (fluid source) comprising a body defining an internal chamber. The chamber has an inlet through which fluid can be drawn into the chamber and an outlet through which the fluid present in the chamber can be discharged from the nozzle; An inlet valve adapted to allow fluid to flow through the inlet and into the chamber only when the pressure drops at least a predetermined minimum threshold amount below the pressure inside the vessel in which the device is mounted. And the outlet flows fluid from the chamber only when the pressure in the chamber exceeds the external pressure at the outlet by at least a predetermined threshold amount. By comprising an outlet valve adapted to be able to eject from the nozzle, at least a portion of said body defining said chamber,
(I) an elastically deformed (biased) initial shape (hereinafter, also simply referred to as “initial elastic biased shape”) is elastically deformed into an expanded or deformed shape in response to application of pressure, thereby The volume of the chamber defined by the portion of the body is reduced as the portion of the body is deformed from the initial shape to the expanded or deformed shape, and the pressure in the chamber is reduced by the reduction of the volume. Configured to cause fluid to flow through the outlet valve;
(Ii) Thereafter, when the applied pressure is removed, it returns to its elastically biased initial shape, thereby increasing the volume of the chamber and allowing fluid to enter the chamber through the inlet valve. Configured to reduce the pressure in the chamber to be inhaled,
The nozzle device further includes a trigger-type actuator, and a trigger handle that can be pulled by an operator, and when the trigger handle is pulled, engages the portion of the body to make it elastic. And a pumping nozzle device characterized in that it comprises an engaging portion adapted to be deformed from an initially biased initial position.

  The nozzle device of the present invention accompanies many conventional pumping spray nozzle devices by making the construction very simple and, at best, an assembly device formed by fitting only six separate components. Solve the above-mentioned drawbacks. In a preferred embodiment of the invention, the device is formed from at most three separate components, more preferably from two separate components, and more preferably from a single unitary piece. Here, “separate components” or “separate parts” means that the parts are not linked in any way, that is, the parts are not integrally formed with each other (however, Each separate component may consist of one or more integral parts or parts). The key to reducing the number of required parts is whether or not the required features (mechanisms) can be integrally formed in the main body of the device. For example, the chambers, inlets, inlet valves, outlets and outlet valves described above can all be defined by the body, thereby reducing the need to use separate parts that result in increased part and assembly costs. Can do.

  The nozzle device of the present invention is further provided with European-type patent EP0442885A2, US Pat. No. 3,820,689 and European patent EP0646844 by providing a trigger-type actuator that can be pulled by an operator to trigger the discharge of fluid from the device. Configured to solve the problems associated with the pumping nozzle device disclosed in US Pat.

  In this trigger type actuator, when an operator pulls a trigger handle (hereinafter also simply referred to as “trigger” or “handle”), a part of the engaging portion engages with the elastically deformable portion of the main body. Are elastically deformed, thereby compressing the chamber and ejecting the fluid present in the chamber from the outlet of the device.

  The trigger type actuator may be attached to the main body of the nozzle device later as a separate part, but is preferably formed integrally with the nozzle device. Also, the handle of the trigger type actuator is preferably projected below the outlet in the same manner as a conventional trigger type nozzle device. In that case, the operator can dispense the fluid by grasping the nozzle device and directing its outlet in the desired direction and pulling the trigger actuator towards the base of the nozzle device.

  Preferably, the trigger type actuator pivots the engagement portion about a pivotal connection point by pulling a trigger handle to apply pressure to the elastically deformable portion of the body of the nozzle device. It is pivotally attached to the body. When the trigger handle is released, the trigger is pushed back to its initial “inoperative position” by the elasticity of the elastically deformable portion of the body of the nozzle device. Alternatively, or in addition, the trigger can be provided with a spring bias that returns it to its initial inoperative position.

  This pivot connection point (pivot point) can be set at any suitable position. For example, a pivot point (also referred to simply as “pivot”) may be provided on one side edge (eg, leading or trailing edge) of the top surface of the device, and more preferably the pivot point is on one side of the top surface of the device. It is provided at a position away from the edge, for example, at the center of the upper surface or in the vicinity thereof. It has been observed that the latter arrangement of pivot connection points gives the operator a more natural or “uncomfortable” feel when pulling the trigger.

  In order to impart the required elasticity to the elastically deformable part of the chamber, it may be thick and / or provided with reinforcing ribs that extend across the elastically deformable body part.

  Also, the trigger type actuator is given a softer surface, and therefore it is partially or fully covered with a flexible plastic to make it feel comfortable when gripped by the operator. Also good. Overmolding with flexible plastic can also be applied to the rear hinge to reinforce the rear hinge if desired.

  In certain embodiments of the present invention, an additional (having an elastically deformable wall between the hinge member (member pivotally connected by a hinge) and the elastically deformable portion of the body ( 2) A chamber is provided, and when the free end of the hinge member is pressed toward the nozzle device, the additional chamber can also be compressed and the contents stored therein can be discharged. . The additional chamber is preferably configured to contain air and has an outlet valve and an inlet valve as described above. The air discharged from the additional chamber may be directed to the outlet passage and mixed with the fluid discharged from the main (first) chamber of the nozzle device, or the air flow from the additional chamber is exited. By the way, it may be mixed with the spray droplets outside the nozzle device. The minimum threshold pressure at which the additional air chamber outlet valve opens is preferably set to a value lower than the minimum threshold pressure at which the main chamber outlet valve of the nozzle device opens. As a result, the air flow from the additional chamber starts to flow before the fluid flow from the main chamber, and the air from the additional chamber remains after the discharge of the contents from the main chamber is completed. The flow can be made to flow. Thereby, a stream of air can be mixed with the spray droplets and always present to atomize the droplets.

  In certain embodiments of the present invention, the outlet of the nozzle device can be configured to create a spray of fluid that is expelled from the chamber of the nozzle device. The outlet of the nozzle device can be configured to perform this function by any suitable means known in the art. For example, the outlet exit orifice can be a narrow hole so that fluid flowing through the orifice under pressure breaks up into a large number of droplets. However, in such embodiments, the outlet preferably comprises an outlet orifice and an outlet passage connecting the chamber to the outlet orifice. Moreover, it is preferable to arrange an outlet valve in the outlet passage. It is particularly preferred that the outlet passage comprises one or more internal spray modification mechanisms adapted to reduce the size of the droplets dispensed through the outlet orifice of the nozzle device during use. Examples of internal spray modification mechanisms that can be provided in the outlet passage include one or more expansion chambers, one or more swirl chambers (to create a spray of fluid through the outlet passage). ) One or more internal spray orifices and one or more venturi chambers. It is well known to provide one or more of the mechanisms described above to change the size of the spray droplets created in the use of a nozzle device. These mechanisms are used alone or in combination, and serve to atomize the created droplet. These spray modification mechanisms and their effect on the properties of the sprays created are well known in the art, for example, International Patent Publication WO 01/89958 (the entire contents of which are incorporated herein). ). By providing an outlet valve upstream from the outlet passage and outlet orifice, it can be ensured that the fluid flows into the outlet passage with sufficient force to break up the liquid into droplets and form a spray.

  In certain embodiments of the present invention, the outlet passage and the outlet orifice may be separate single units or inserts (replaceable inserts). Such a unit or insert can be connected to the outlet of the chamber to constitute the outlet of the nozzle device. This unit or insert can also be connected to the body of the device by a hinge so that it can be selectively pivoted or pivoted to the required position for use and, if not required, pivoted out of the required position. .

  In another embodiment of the invention, the liquid in the chamber can be dispensed as a liquid flow that is not broken up into droplets. Examples of liquid dispensed in this form include soap, shampoo, cream and the like.

  Alternatively, the fluid to be dispensed may be a gas or a gas mixture such as air.

The chamber defined by the body body of the nozzle device can be defined between two or more joined parts of the body. It is particularly preferred that the chamber of the nozzle device is defined by joining two parts together by fitting them together. The two parts may each be separately formed components, but more preferably, the two parts are integrally formed as a single component. In the latter case, after the two parts are molded together in the same mold, they are preferably connected to each other by hinges or foldable connecting elements that allow them to contact each other to define the chamber.

  In a preferred embodiment of the invention where the outlet is comprised of an outlet valve, an outlet orifice, and an outlet passage connecting the outlet valve to the outlet orifice, at least two coupling components defining the chamber are connected to the outlet passage. It is preferable that at least a part be defined. Highly preferred is a configuration in which the two coupling parts form an outlet orifice between them, which also defines the entire outlet passage and the outlet orifice.

  The outlet passage is preferably defined between the abutting surface of one of the parts and the abutting surface of the other part facing it. Forming one or more grooves and / or recesses in one or more of the abutting surfaces, and when the abutting surfaces are abutted against each other, the grooves and Alternatively, it is preferable that the recess defines an exit passage. Most preferably, grooves and / or recesses are formed in each of the abutting surfaces, and when the abutting surfaces are abutted against each other, the grooves and / or recesses are aligned to define an outlet passage. The configuration. These grooves and / or recesses preferably extend from the chamber to the edge of the abutting surface opposite to the side of the chamber, and when the abutting surfaces are abutted against each other, the outlet An exit orifice is defined at the end of the passage. In a preferred embodiment providing one or more spray modification mechanisms in the exit passage, these mechanisms are formed on opposing abutting surfaces as illustrated and described in International Patent Publication No. WO 01/89958. It can be formed by aligning recesses or other formations (means formed in some shape).

  The two parts of the device body may be permanently fixed, for example by ultrasonic welding or heat welding. When the base part and the upper part are molded together or joined by welding, they are preferably formed of materials that are compatible with each other. However, as described above, the main body is preferably formed of a single material.

  Alternatively, the two parts can be configured to closely or resistance fit to each other (eg, by snap fit coupling) to form a nozzle without using welding. For example, the edge of one part can be configured to fit into the holding groove of the other part to form a nozzle device.

  As a further alternative, a compatible plastic material can be molded over the joint of the two parts and the parts can be joined. This involves molding two components simultaneously in a single mold tool and combining them in the tool to form a nozzle device, then covering the perimeter of the two parts with a suitable plastic This can be accomplished by molding the material and holding both parts together.

  In certain embodiments, the two parts can be left releasably attached to each other so that the chamber and / or outlet can be separated for cleaning.

  Highly preferred is that the two parts of the body of the nozzle device defining the chamber are a base part and an upper part. The base part (hereinafter also simply referred to as “base”) is preferably constructed so that it can be fitted into the opening of the container (fluid source) by suitable means, for example by a thread or snap-fit connection. Furthermore, in addition to constituting a portion of the body that defines the chamber, the base preferably also defines an inlet and, in a preferred embodiment, a portion of the outlet passage that leads from the chamber to the outlet orifice.

  The upper part defines a chamber with the base part, and in a preferred embodiment is adapted to fit into the base part so as to define an outlet valve, outlet passage and / or outlet orifice. In certain preferred embodiments of the present invention, the base part and the upper part define an exit orifice. The upper part preferably forms the elastically deformable part of the body defining the chamber.

  As previously mentioned, the trigger actuator can be a separate part and can be fitted to the body of the nozzle device when the nozzle device is assembled. However, the trigger type actuator is preferably formed integrally with one of the components of the main body. Highly preferred is that the trigger type actuator is formed integrally with one of the main body components and is connected to the main body component by a hinge or a foldable connecting element.

Two or more chambers The nozzle device of the present invention may also have two or more separate chambers.

  Each individual chamber may draw fluid into a nozzle device through a separate inlet from a different fluid source, eg, separate fluid filled compartments within the same container.

  Alternatively, one or more of the additional chambers may not have an inlet. In that case, the reservoir of the second fluid can be stored in the additional chamber itself, and the additional chamber or its outlet can distribute and supply only a predetermined amount of the second fluid for each operation. You may comprise so that it can do.

  As a further alternative, one or more of the additional chambers may inhale air from outside the nozzle device. Whether the additional chamber or chambers contain air or other fluids that are aspirated from separate compartments within the container of the fluid source, in two or more chambers. The contents can be discharged simultaneously through the same or separate outlets by simultaneously compressing the chambers. The contents of each chamber are mixed in the outlet when discharged from the nozzle device, after being discharged, or before being discharged. It should be understood that by changing the relative volume of each individual chamber and / or the dimensions of the outlet, it is possible to influence the relative proportions of the components in the final mixture discharged from the outlet. Furthermore, the outlet passage can be divided into two or more individual channels, each extending from a separate chamber, allowing fluid to be supplied from each individual channel into the spray nozzle passage as described above. Then, the fluid can be discharged after being mixed.

  If an additional chamber for releasing air is provided, if the release of air is completed and the applied pressure is released and the elastically deformable part of the chamber is deformed back to its initial elastically biased shape It is necessary to inhale additional air into the chamber to replenish the air release. It may be by sucking air back through the outlet (i.e. not providing an airtight outlet valve in this additional chamber) or, more preferably, by sucking air through an inlet hole formed in the body defining the chamber. Can be achieved. In the latter case, it is preferable to provide a one-way valve similar to the above-described inlet valve in the inlet hole. The one-way valve only allows air inhalation and prevents air from being released through the inlet hole when the chamber is compressed.

  In most cases, it is desirable to co-discharge (simultaneous discharge) air from the additional chamber and fluid from the container at approximately the same pressure. For that purpose, it is necessary to compress the air chamber larger than the fluid or liquid storage chamber (which differs depending on the application, for example, 3 to 200 times larger). It arranges both chambers so that when pressure is applied, compression of the air containing chamber takes place preferentially so that air and liquid can be discharged at the same or substantially the same pressure. Can be achieved. For example, when pressure is applied, the air containment chamber is first compressed, and then the air containment chamber is placed in the liquid containment chamber so that it reaches an aspect where both the air containment chamber and the liquid containment chamber are compressed together. Can be placed rearward.

  Alternatively, the nozzle device can be configured such that the air pressure is higher or lower than the liquid pressure. This is useful for certain applications.

  The plurality of chambers described above may be arranged side by side or may be arranged one above the other. In a preferred embodiment in which one of the additional chambers contains air, the additional air chamber deforms the elastically deformable part of the body when it is compressed, thereby the chamber of the nozzle device. To be compressed with respect to the chamber of the nozzle device.

  The fluid in each chamber is preferably discharged at the same time. However, in certain applications, the fluid may be discharged from one chamber and the fluid may be discharged from another chamber before or after that.

  In another embodiment, air and fluid from a container (fluid source) may be housed in a single, same chamber rather than in separate chambers. In such a case, fluid and air can be co-discharged and mixed as they flow out through the outlet. For example, when the outlet has an expansion chamber arranged in the outlet passage, that is, a widening chamber, the contents discharged from the chamber are divided into a plurality of individual branch passages of the channel (exit passage) and flowed into the expansion chamber. It can be configured to flow from different sites to promote mixing.

The body of the material nozzle device can be made from any suitable material.

  In certain embodiments of the invention consisting of two parts whose bodies fit together to define a chamber, the two parts may be made from the same material or from different materials. May be. For example, one of these parts can be manufactured from a flexible or elastically deformable material such as an elastically deformable plastic or rubber material and the other part can be manufactured from a rigid material such as a hard plastic. In such an embodiment, a flexible or elastically deformable material constitutes an elastically deformable portion of the body that defines the chamber and allows the operator to trigger the discharge of the fluid in the chamber as a spray. The elastically deformable part can be easily deformed, which is preferable for certain applications. The flexible material can also give the operator a soft hand feeling. Preferably, the base part is made of hard plastic and the upper part is made of hard plastic. Such an embodiment may be formed by molding the two parts separately and joining them together to form an assembled nozzle device, or the two parts can be doubled in the same forming tool. You may form by shape | molding using the injection molding (bi-injection molding) method. In the latter case, the two parts may be molded simultaneously in the same molding tool and fitted in the tool, or one part may be molded with the first material and the other with the second material. A part may be molded directly onto one part.

  Alternatively, both two parts can be made from a rigid or flexible material. The rigid material and flexible material may be any suitable material from which the nozzle device can be manufactured. For example, a metal material such as an aluminum foil may be used, or a flexible material such as rubber may be used. However, the entire body of the device is preferably formed of a hard plastic material.

  The trigger type actuator can be formed of any appropriate material, but is preferably formed of a hard plastic material.

  Preferably, the entire pumping nozzle device (ie body and actuator) is formed from a single rigid or flexible plastic material.

“Hard plastic material” as used herein has a high degree of rigidity and strength when molded into a desired shape, but at the same time it is also partly relatively flexible or elastically deformed by reducing the thickness of the plastic. It refers to a plastic material that can be given flexibility. Thus, a thinned piece of plastic material can be used to form the elastically deformable portion of the device body that defines at least the chamber.

  The term “flexible plastic” as used herein refers to a plastic that is flexible or elastically deformable as an inherent property to allow elastic displacement of at least a portion of the device body to facilitate compression of the chamber. It means wood. The degree of flexibility of a plastic depends on the wall thickness of any area or region of the plastic. Such “flexible plastic” materials are used, for example, in the manufacture of shampoo bottles or shower gel containers. In the manufacture of the nozzle device of the present invention, a part of the main body is formed of a relatively thick plastic piece to give the structure the required rigidity, and the other part gives the required deformation characteristics. Therefore, it can be formed of a relatively thin plastic piece. If extra rigidity is required in some areas, a relatively thick plastic frame, commonly known as a support rib, can be provided.

  Forming the entire body of the nozzle device from a single material allows the entire nozzle device to be molded in a single molding operation within a single molding (mold) tool, as described below. .

  In particular, the two parts are integrally formed, and both parts are joined by a foldable connecting element or hinge joint so that the upper part can be pivoted to a position where the upper part contacts the base part to form an assembled nozzle device. In a preferred embodiment, the formation of the nozzle device from a single material avoids the need to assemble a large number of separate components. Furthermore, the formation of a nozzle device from a single material allows the two parts to be welded (for example by heat welding or ultrasonic welding) or if the plastic used is a hard plastic material, It is also possible to connect the upper part and the base part by a snap fit. The latter option also allows the upper part and the base to be periodically removed for cleaning.

  In most applications, it may be required to be formed from a rigid material to provide the required strength to the actuator surface and allow the two parts to be joined by snap fit or welding. In such a case, the deformable part of the device body will only deform when a predetermined minimum threshold pressure is applied, so that the pumping action of this device is turned on for the conventional pumping nozzle device.・ It should be closer to the off operation. However, for certain applications, a flexible material may be preferred.

  A portion of the device body configured to be elastically deformed is a rigid plastic that elastically deforms when pressure is applied, compresses the chamber, and then returns to the initial elastic biased shape when the applied pressure is removed It can be a relatively thin piece of material. Alternatively, the portion configured to be elastically deformed may be configured of a substantially rigid portion and an elastically deformable portion surrounding the portion. In that case, when pressure is applied to the rigid portion, the elastically deformable portion can be deformed, thereby displacing the rigid portion and compressing the chamber. For example, the elastically deformable part surrounding the rigid part can be similar to a bellows. That is, the rigid portion is surrounded by a deformable side wall made of a large number of hard plastic folds, and when pressure is applied to the rigid portion, the side wall folds are elastically compressed to reduce the chamber volume. it can.

  In many cases, however, it is preferred that the abutting surface defining the outlet passage of the outlet is formed of a hard plastic material. A flexible or elastically deformable material can also be used for this purpose, but in general, if any spray modification mechanism is provided, it is necessary to accurately form it with a rigid material, so The use of flexible or elastically deformable materials is less preferred. Thus, in some embodiments of the present invention, one of the two parts that defines the outlet and the chamber has two materials: an abutting surface that defines an outlet passage and an outlet orifice. It can be formed from a rigid material that forms and an elastically deformable material that defines the chamber.

In order to obtain an optimal function of the outlet valve, it is necessary to provide a one-way valve at the outlet of the chamber or to configure the outlet of the chamber to function as a one-way valve. On the other hand, the valve has a predetermined minimum threshold pressure in the chamber (as a result of a reduction in the volume of the internal chamber caused by the displacement of the elastically deformable part of the body from its initial elastic biased shape). Only when obtained can the product stored in the chamber be dispensed through the outlet, and at other times the outlet of the chamber can always be closed to establish an airtight seal. When the pressure in the chamber is lower than the predetermined minimum threshold pressure, the valve is closed, so that the pressure applied to the elastically deformable part of the device body is released and the elastically deformable wall of the chamber has its initial elastic bias shape Even if the volume of the chamber increases as it is regained, air is prevented from being sucked into the chamber through the outlet.

  While any suitable one-way valve assembly that can set an air tight seal can be provided at the outlet, the one-way valve is preferably formed by a component of the nozzle device body. Highly preferred is a one-way valve formed between opposing abutting surfaces that define an outlet passage.

  In certain embodiments of the present invention, the outlet valve includes a portion of the length of the outlet passage that presses one of the abutting surfaces defining the outlet passage against the opposite abutting surface. Are formed so as to be elastically biased so as to be closed. In this case, the valve deforms the resiliently biased impact surface in each chamber away from the opposing impact surface, thereby forming an open channel through which fluid from each chamber is passed. It can be released only when sufficiently increased and fluid can be dispensed from the chamber. When the pressure drops below a predetermined minimum threshold, the elastic biasing contact surface returns to its initial elastic biasing shape and closes the outlet passage.

  In certain embodiments of the present invention, it is particularly preferred that the elastic biasing contact surface is integrally formed with an elastically deformable portion of the device body that defines the chamber.

  In embodiments in which the entire device body is formed of a hard plastic material, the resistive force exhibited by the elastically biased surface (eg, a thin piece of hard plastic) provides the minimum pressure threshold required for optimal operation of the device. May not provide sufficient elasticity. In such cases, a thick plastic rib may be formed that extends across the outlet passage to provide the required strength and resistance to the outlet passage / outlet valve. Alternatively, a rigid reinforcing rib may be provided above a portion of the outlet passage / exit valve.

  In another preferred embodiment, the outlet valve or pre-compression valve forms an elastically deformable member extending across the outlet passage on one of the abutting surfaces to close and seal the outlet passage. Can be configured. This elastically deformable member is attached to the nozzle device only at one of its both end edges, and the other edge (preferably, the edge opposite to the one edge) is not attached to the device and is left free. This free end is configured to displace when the pressure in the chamber exceeds a predetermined minimum threshold. The free end abuts the surface of the exit channel (exit passage) and sets a seal with the abutment surface when the pressure in the chamber drops below a predetermined minimum threshold. However, when the pressure exceeds a predetermined minimum threshold, the free end of the elastically deformable member is moved away from the abutting surface of the channel to form an opening through which fluid present in the chamber can pass to the outlet. The elastically deformable member is preferably disposed in a chamber formed along the length of the outlet channel or passage. It is highly preferable that the abutting surface for setting a seal in cooperation with the free end of the elastically deformable member under a pressure lower than the minimum threshold is a tapered or inclined surface at a point where the free end is contacted. Thereby, a point seal contact is set and a much more effective seal is obtained. Of course, the taper or inclination of the abutting surface is such that when the pressure in the chamber drops below a predetermined minimum threshold, the free end of the elastically deformable member contacts the inclined surface, but the pressure does not exceed the predetermined minimum threshold. When it exceeds, it must be set so that the free end of the elastically deformable member spreads away from the inclined surface.

  Alternatively, the outlet valve may be a column formed on the abutting surface of either the base part or the upper part that contacts the opposing abutting surface to close and seal the outlet passage or It can be a plug. This column or plug is a deformable part of the base part or upper part so that it can be deformed to define an opening through which fluid can flow out through the outlet when the pressure in the chamber exceeds a predetermined threshold. Attached to.

  The predetermined minimum pressure value that must be brewed in the chamber to open the outlet valve is determined according to the intended application. For example, by selecting an appropriate elastically deformable material, or by modifying the characteristics of the elastically deformable surface by forming an elastically deformable surface (for example, including reinforcing ridges (bumps)). Methods will be apparent to those skilled in the art.

In order to ensure that fluid is discharged through the outlet only when the chamber is compressed by pushing and displacing the elastically deformable portion of the inlet valve body from its initial elastic biased shape into the chamber, the inlet of the nozzle device It is necessary to provide a one-way valve at or in the inlet. As the inlet valve for that purpose, any appropriate inlet valve can be used.

  The inlet valve (as when the pressure applied to the elastically deformable portion of the chamber to compress the chamber is released and the volume of the chamber increases as the elastically deformable portion regains its initial elastic biased shape. It can be configured to open and allow fluid to flow into the chamber only when the pressure in the chamber drops below a predetermined minimum threshold pressure. In that case, the inlet valve may be a flap valve (blade valve, butterfly valve) composed of an elastically deformable flap arranged so as to cover the inlet opening. The flap is elastically biased to press against the inlet opening and can be configured to deform and allow fluid to flow into the chamber only when the pressure in the chamber drops below a predetermined minimum threshold pressure. preferable. At all other times, the inlet is closed, thereby preventing fluid from entering the inlet from the chamber. It is particularly preferred that the elastically deformable flap is formed as an integral extension of the elastically deformable part of the body defining the chamber. It is particularly preferable that the base part defines the inlet and the upper part forms an elastically deformable part of the main body. Accordingly, it is preferred that the upper part includes an elastically deformable flap that extends within the chamber to cover the inlet opening to the chamber and constitutes an inlet valve.

  Alternatively, the flap is not elastically biased to press against the inlet opening, but is placed over the inlet opening and only when the chamber is compressed and the pressure in the chamber increases. You may comprise so that it may press-contact to an inlet_port | entrance.

  However, simply providing a flap valve that is elastically biased to cover the inlet opening can entail various problems. Specifically, over time, the elastic limit of the flap valve material may be exceeded, and as a result, the flap valve will not function properly. This problem is particularly true for embodiments in which the flap is formed by a thin piece of rigid material, but not so much for flexible material as for rigid material. This problem can occur when the flap is deformed to open the valve, or because the chamber is compressed and the flap is deformed. As a result, fluid may leak back from the chamber through the inlet and back into the container (fluid source).

  For these reasons, it is preferable that the flap valve is subjected to some kind of modification. In particular, the inlet is preferably formed with a raised lip surrounding the inlet opening, and the elastically deformable flaps abut against the raised lip to create a tight seal around the inlet orifice. . The lip ensures that good contact with the flap is obtained. In embodiments where the lip is very small, one or more on either or both sides of the inlet opening to ensure that the proper seal is set and to prevent the lip from being damaged. It may be necessary to provide additional support ribs.

  A further preferred feature is the formation of protrusions or plugs on the surface of the flap. This protrusion or plug protrudes (slightly) a short distance into the inlet opening and abuts the side edge of the inlet opening to further enhance the sealing action of the seal.

  Also, the inlet opening to the chamber is preferably arranged at a high position in the chamber so that the fluid flowing into the chamber through the inlet falls into the fluid holding or storing area of the chamber. This arrangement prevents the fluid from resting on the top surface of the inlet valve for an extended period of time by effectively separating the inlet opening from the fluid holding or storage area of the chamber, thereby over time. Reduce the possibility of liquid leakage.

  Further, it is preferable that the second reinforcing flap or member comes into contact with the abutting surface of the elastically deformable flap (main flap) opposed to the second reinforcing flap or the member so as to closely abut the inlet opening. In addition, the second reinforcing flap has a portion that covers the inlet orifice on the opposing surface of the elastically deformable flap in order to maximize the pressure in the vertical (up and down) direction of the main flap that covers the inlet opening. However, it is preferable that the contact is made at or near that point. This configuration again helps maintain the integrity of the seal.

Lock
The nozzle device can also be provided with locking means (locks) to prevent accidental dispensing of fluid.

  In embodiments in which a lock is provided, the lock is preferably an integral part of the device body and not a separate part coupled to the body. For example, the locking means is integrally coupled to the body (e.g. base part or upper part) and can be pivoted to a position that prevents the outlet valve from being released. (A bar or member pivotally connected by a hinge).

  Alternatively, the locking means can be incorporated into a trigger type actuator. For example, one or more locking tabs can be provided that can be selectively positioned between the body of the device and the trigger handle to prevent the trigger from being pulled. In order to enable the device, the locking tab must be disengaged from the trigger and / or engagement with the body of the device. For example, in order to release the locking tab, the locking tab must be pushed inward. In order to prevent the lock from being released by the child, a configuration in which the trigger must first be pushed away from the device in order to release the lock may be employed.

Air relief or leakage valve The device shall further be provided with air leakage means through which air can be passed to balance the pressure difference when there is a pressure difference between the interior of the container and the external environment. Can do. Air leakage may simply occur from the gap between the joint between the dispenser nozzle and the container, but this is not preferable because the air leakage occurs when the container is inverted or shaken. In a preferred embodiment, the dispenser nozzle is provided with an air leakage valve, ie, a one-way valve that allows air to flow into the container but prevents fluid from leaking out of the container even when the container is inverted. be able to. Any suitable one-way valve is sufficient, but this air leakage valve is preferably formed integrally in the body of the dispenser, more preferably formed integrally between the two parts of the dispenser body. .

  Most preferably, the air leakage valve is formed between the upper part and the base part that define the chamber of the dispenser nozzle.

  Preferably, the air leakage valve consists of a valve member defined by the device body and disposed in a channel connecting the interior of the fluid source (container) to the external environment. Most preferably, the valve member is elastically biased to contact and sealingly engage the side wall of the channel and prevent liquid from leaking out of the container, and the pressure in the container can be externally applied. It can be elastically deformed when it is reduced by a minimum threshold amount at least below the pressure, or it can displace and disengage from the sealing engagement with the side wall of the channel, allowing air to flow (leak) into the container. It is made to define a possible opening. When the pressure difference inside and outside the container drops to a level below the minimum threshold, the valve member returns to the position to close the channel.

  Preferably, the valve member is in the form of a plunger that plunges into the channel and has an outwardly extending wall that abuts the side wall of the channel and sets a seal. Preferably, the outward extension wall is further inclined toward the inside of the container. This configuration means that the high pressure in the container exerted on the valve member keeps the wall abutting against the side wall of the channel. Thus, the integrity of the seal is maintained, thereby preventing liquid in the container from leaking out through the air leakage valve. Conversely, when the pressure in the container drops by a minimum threshold amount below the external pressure, the outer extension wall of the valve member is deflected away from the container side wall, allowing air to flow into the container. To balance or reduce the pressure difference between inside and outside.

  If the plunger has accumulated any residue in the air leakage valve, the plunger can be moved slightly when the elastically deformable dome-shaped portion is pressed to remove the residue. It is particularly preferred to attach to a flexible base or flap. Furthermore, it is preferable to provide a movable (for example, elastically deformable) element in the air leakage valve because it serves to prevent the valve from becoming clogged during use.

  In certain embodiments of the present invention, the liquid present in the container is also prevented from contacting the valve member with great or excessive force when the container is inverted or vigorously shaken. Therefore, it is preferable to provide a protective cover that covers the opening of the female tube facing the inner surface of the device. This cover allows air and some fluid to pass through, but prevents the fluid from directly impacting the seal formed by the flared end of the plunger, thus exposing the seal to excessive force. Is prevented.

  In the modified embodiment, not the male side (valve member) of the air leakage valve but the channel (female side) of the air leakage valve can be elastically deformed. This configuration can allow the side walls of the channel to be distorted to allow air to flow into the container.

  The valve member and the channel may be formed of the same material or different materials. For example, both the valve member and the channel may be formed of a semi-flexible plastic material, or the female element (channel) is formed of a hard plastic and the male part (valve member) is formed of an elastically deformable material. You can also

  For certain products that are stored in containers for long periods of time, there are problems associated with the accumulation of gas in the bottle (container) over time. In this case, a relief valve is required to mitigate the pressure increase that inevitably occurs. For this purpose, the air leakage valve described above can be modified to additionally perform a gas escape function by providing one or more narrow grooves in the side wall of the channel. This narrow groove allows gas to slowly leach out of the container, bypassing the seal set by contact between the valve member and the channel sidewall, but can prevent or exude liquid (product) Minimize the amount of liquid. The groove formed in the side wall of the channel is such that the groove is exposed only when the pressure in the container increases and acts on the plunger to deform it outwardly relative to the container. It is preferable to form it outside the contact point with the side wall. If excess gas is eliminated, the plunger returns to an elastically biased position that does not expose the groove. During this process, no liquid product is lost.

  Alternatively, the valve member is configured to be biased outwardly by the gas pressure in the container so as to define an opening through which the valve member can be displaced (pushed) from the channel to pass gas. be able to.

In a preferred embodiment of the present invention consisting of at least two components of the seal, a seal (at the junction between the at least two components joined together) to prevent fluid from leaking out of the dispenser nozzle. It is preferable to set a seal or sealant. Any suitable seal can be used. For example, the two parts may be welded together, or one part may be configured to snap into a sealing engagement with the other part, or alternatively, on the outer periphery of one part. A flange may be formed, and the flange may be tightly fitted around the upper surface of the other part to form a seal with the upper surface.

  The seal is composed of a male protrusion formed on the abutting surface of one of the at least two parts and a female groove corresponding to the protrusion formed on the opposing abutting surface of the other part. It is preferable that the male protrusion is configured to be hermetically engaged with the female groove when the two parts are coupled.

  The seal extends around the entire circumference of the sidewalls of the chamber and the outlet passage so that fluid leaking from any location in the chamber and / or the outlet passage does not ooze from the junction between the two components. It is preferable to form.

  In certain embodiments having an outlet passage, the protruding member may extend across the outlet passage to form an elastically deformable valve member for the outlet valve. This portion of the protruding member (portion constituting the valve member) is usually made relatively thin so as to obtain the required elasticity for achieving the function as the valve member.

  In certain embodiments of the present invention, the male protrusion may be formed to snap fit into the groove, or within the groove in a manner similar to the plug being plugged into the sink hole. You may form so that it may carry out resistance fitting to.

In most cases, the dip tube is formed integrally with the nozzle. Alternatively, the dispenser body can be provided with a recess into which a separate dip tube can be fitted. The dip tube is for sucking up fluid from a depth in the container during use, and is provided in almost all cases.

  Alternatively, it may be desirable not to provide a dip tube for certain containers, particularly small volume containers such as glue bottles, perfume bottles, nasal sprays and the like. This is because, in use, the dispenser nozzle itself can enter the container and the product in the container can be sucked into the nozzle. Alternatively, the container may be turned upside down to facilitate the entry of liquid into the dispenser nozzle (pour priming water). Alternatively, the nozzle device may be provided with a fluid compartment as an integral part thereof, and the fluid compartment may be configured to suck fluid directly from the fluid compartment into the nozzle inlet without going through the immersion tube.

The chamber of the inner chamber nozzle device can be of any shape, but it will be appreciated that the size and shape of the dome is selected to suit the particular nozzle device and intended application. Similarly, all of the fluid present in the chamber may be released when the chamber is compressed, or only a portion of the fluid in the chamber may be released. Again, this is determined depending on the target application.

  In certain preferred embodiments of the present invention, the chamber is defined by an elastically deformable, generally domed portion of the device body. Preferably, the dome-shaped portion is formed on the top surface of the body so that the operator has easy access to apply pressure to elastically deform it. One potential element of a dome-shaped chamber is that some dead space is created in the chamber when the operator compresses it, and for some applications, the dead space can be minimized, It is preferable to make it practically negligible. To achieve this property, the elastically deformable portion of the chamber is brought into contact with the opposing wall that defines the chamber, thereby depressing the elastically deformable portion of the chamber to release all of the contents present in the chamber. It has been found that a flat dome or other shaped chamber capable of (dentation) is generally preferred. For these reasons, a flat dome is particularly preferred because it reduces the inward push required to compress the chamber and trigger the dispensing of fluid stored therein. The flat dome also reduces the number of pressing operations required to prepare the chamber for initial use (synonymous with priming the pump).

  In certain cases, the elastically deformable portion of the device body that defines the chamber may not be sufficiently elastic to retain its original elastic biased shape once deformed. For example, it is the case when the fluid of interest has a high viscosity and is therefore difficult to flow in against the inhalation into the chamber through the inlet. In such a case, extra elasticity can be imparted by placing one or more elastically deformable columns in the chamber. These elastically deformable columnar bodies bend when the chamber is compressed, and work to push the deformed portion of the device body back to its original elastic biased shape when the applied pressure to the chamber is released. . Alternatively, one or more thick plastic ribs may extend from the edge of the elastically deformable part toward the center of the part. These ribs compress when pressure is applied to the elastically deformable part of the device body, and when the applied pressure is released, push the elastically deformable part of the device body back to its initial elastic biased shape, i.e. Effectively, the elasticity of the elastically deformable part is increased by functioning as a leaf spring.

  Yet another variation is to provide a spring or other type of resilient means within the chamber. As in the embodiment described above, the spring compresses when the chamber wall is deformed and returns the deformed portion of the device body to its original elastic biased shape when the applied pressure is removed. And thereby urge the compressed chamber back to its original “uncompressed shape”.

Integral formation with the container In most cases, the nozzle device is configured to be fitted into the container by any suitable means, such as snap-fit, threaded connection (thread connection). However, in some cases, the nozzle device can be incorporated as an integral part of the container. For example, the nozzle device can be integrally molded with various forms of plastic containers such as rigid containers or bags. This is possible because the nozzle device is preferably molded from a single material and thus can be molded integrally with a container made from the same or similar compatible material.

  According to the second aspect of the present invention, the pumping nozzle device as described above is fitted in the opening so that the fluid stored in the container in use can be distributed through the pumping nozzle device. A container is provided.

  According to the third aspect of the present invention, there is provided a container integrally formed with the pumping nozzle device as described above so that the fluid stored in the container in use can be distributed and supplied through the pumping nozzle device. Provided.

According to a fourth aspect of the present invention, there is a pumping nozzle device adapted to be able to dispense fluid stored in a container through a nozzle in use, comprising a body defining an internal chamber, The chamber has an inlet through which fluid can be drawn into the chamber and an outlet through which the fluid present in the chamber can be discharged from the nozzle, the inlet having a pressure within the chamber An inlet valve adapted to allow fluid to flow through the inlet into the chamber when the pressure is reduced by at least a predetermined minimum threshold amount below the pressure in the container to which the nozzle device is attached; The outlet will only allow fluid to exit the chamber when the pressure in the chamber exceeds the external pressure at the outlet by a minimum threshold amount. Out not by including an outlet valve adapted to be able to eject from the nozzle, at least a portion of said body defining said chamber,
(I) being displaced from an elastically biased initial position to an expanded or deformed position in response to application of pressure, thereby deforming the portion of the body from the initial position to the expanded or deformed position; The volume of the chamber defined by the portion of the body decreases as the volume decreases, the pressure in the chamber increases by reducing the volume, and fluid is allowed to flow through the outlet valve;
(Ii) thereafter, when the applied pressure is removed, it returns to the initial position, thereby increasing the volume of the chamber so that fluid is drawn into the chamber through the inlet valve; Configured to reduce the pressure in the chamber,
The nozzle device further includes a trigger type actuator that can be pulled by an operator, and when the trigger handle is pulled, engages the portion of the body to elastically bias it. A pumping nozzle device, characterized in that it comprises an engagement portion adapted to be displaced from a predetermined initial position.

  Preferably, the nozzle device is configured as described above.

  Further, the portion of the device body that can be displaced to reduce the volume of the chamber and thereby cause fluid in the chamber to flow out through the outlet valve is a piston mounted in a piston channel. It is preferable. The piston channel may constitute the entire chamber, or may constitute only a portion of the chamber.

  The nozzle device preferably comprises means for displacing (pushing) the piston inward from its initial position and then recovering its initial position. It may be any suitable means that can be manipulated to displace the piston as desired, such as a trigger or cover cap connected to the piston. The trigger actuator is preferably elastically biased so as to hold the part of the device body in its initial position when no pressure is applied.

Method of Manufacture The nozzle device of the present invention can be manufactured by any suitable technique known in the art.

  As previously mentioned, preferred embodiments of the present invention provide two parts (base and upper part) that fit together to define at least a chamber of the device, more preferably at least a portion of the chamber and outlet. ). In addition, the device includes a trigger type actuator.

According to yet another aspect of the present invention, a method for manufacturing a nozzle device as described above, comprising a body consisting of at least two coupling parts and a trigger actuator,
(I) molding the at least two parts of the body and the trigger actuator;
(Ii) joining the at least two parts of the body together to form the body of the nozzle device;
(Iii) fitting the trigger type actuator to the main body of the nozzle device;
Is provided.

  Each part of the body can be a separate part, in which case the components are first formed separately and then combined to form a nozzle. Each component may be formed of the same material or different materials.

  Alternatively, and more preferably, the two parts of the body, or one of the parts of the body, and the trigger type actuator are formed integrally with each other and connected by a connecting element that can be bent or bent. be able to. In that case, the two joined parts of the body can be formed in a single molding process and then combined with the remaining parts to produce a nozzle device. For example, in a preferred embodiment, the base part and the upper part of the main body can be formed integrally and connected to each other by a connecting element that can be bent or bent. Once the base part and the upper part are formed, the upper part can be folded over and overlaid on the base to be joined to the base to obtain an assembled nozzle device. The trigger type actuator can then be fitted to the body of the nozzle device as a separate part.

  Alternatively, the nozzle device is formed from two components of the body, all formed integrally with each other and interconnected by a foldable or bendable connecting element, and a single component consisting of an actuator member. Is done. That is, the entire device is formed from a single material in a single molding process. Once formed by a single molding process, the two parts that form the chamber of the device are joined together, and then the trigger actuator is moved across the elastically deformable part of the device body (the part that forms the chamber). It can be connected to a predetermined position to extend.

  It should be noted that the integrally formed components are preferably formed from the same material in a single molding process.

  Alternatively, the nozzle device can be formed by a double injection molding process in which the first component of the body is formed and then the second component is molded over the first component. Each part may be molded from the same material or from different materials. As in the previous embodiment, the trigger actuator may later be attached to the body of the nozzle device as a separate part, or may be integrally formed with one of the parts of the body.

  Once the two parts of the body are joined to form the assembly body of the device, another plastic material can be overlaid on the parts to hold the two parts together. .

According to yet another aspect of the present invention, a method for manufacturing a nozzle device as described above, comprising a body consisting of at least two coupling parts and a trigger actuator,
(I) forming a first part of the at least two parts of the main body in a first processing step;
(Ii) forming a body of the nozzle device by forming a second part of the at least two parts of the body over the first part in a second processing step, and forming the body of the nozzle device;
(Iii) connecting a trigger type actuator to the body of the nozzle device;
Is provided.

  The at least two parts are preferably molded by the double injection molding method in the same molding tool. Usually, the first part is a base part of a nozzle device, and the second part is an upper part.

According to yet another aspect of the present invention, a method for manufacturing a nozzle device as described above, comprising a body consisting of at least two coupling parts and a trigger actuator,
(I) forming a first part of the at least two parts of the body together with a base or frame for a second part of the at least two parts in a first processing step;
(Ii) forming over the base or frame to form a second part of the assembled nozzle device;
Is provided.

  The frame for the second part can be fitted to the base before the overmolding step.

  Alternatively, the overmolding can be performed before the frame for the second part is fitted to the first part.

  The overmolding may be performed with the same material as the frame material for the first part and the second part, or may be a different material.

  It is particularly preferred that the base is initially molded from a hard plastic material together with a frame support for the upper part. The frame for the upper part is preferably connected to the base by a hinged or foldable connecting member. The hinged or foldable coupling member allows the frame to be folded over the base and fitted to the base during the final product assembly stage. On this frame, a flexible elastically deformable plastic material compatible with the frame constituting the elastically deformable part of the main body defining the chamber is formed by molding. This elastically deformable plastic material can also constitute elastically deformable valve members for outlet and inlet valves. It can also cover other parts of the surface of the nozzle to give a soft hand feel when the operator grips the device. This rigid frame of the upper part can also form the outer edge of the upper part that constitutes a connection point with the base, and in embodiments where a spray nozzle passage is provided, this frame is formed on the base An upper abutting surface can also be formed that contacts the lower abutting surface and defines the spray passage and outlet orifice.

According to yet another aspect of the present invention, a method for manufacturing a nozzle device as described above, comprising a body consisting of at least two coupling parts and a trigger actuator,
(I) forming a first part of the at least two parts of the body together with a frame or base for the second part of the at least two parts in a first processing step;
(Ii) positioning the insert portion of the main body such that when the frame of the second part of the main body is coupled to the first part of the main body, the insert portion is held in the frame; Forming the second part of the body with a portion and a frame;
(Iii) coupling a trigger actuator to the body of the nozzle device;
Is provided.

According to yet another aspect of the invention, there is provided a body comprising at least two coupling parts and a trigger type actuator, the coupling part and the trigger type so that the coupling part and the trigger type actuator are movable relative to each other. A method of manufacturing a nozzle device as described above, wherein the actuators are connected to each other by a connecting element,
(I) forming each component of the main body and the trigger type actuator together with the connecting element in a single forming step;
(Ii) moving the at least two parts of the body to a position to engage each other to form the body of the nozzle device;
(Iii) moving the trigger actuator to engage the body to form the nozzle device;
Is provided.

Preferably, the foaming agent is loaded into the mold together with the foaming agent plastic material. The foaming agent creates foam that prevents the so-called “sink” phenomenon from occurring in the molded plastic. The problem of sinking, and the use of foaming agents in the manufacture of molded plastics to address this problem is described in Applicant's own International Patent Publication WO 03/049916, the contents of which are incorporated herein. Detailed).

Embodiments of the present invention will now be described by way of example with reference to the accompanying drawings.
In the following description, like parts are denoted by like reference numerals throughout the drawings.

  The nozzle device shown in FIGS. 1A and 1B consists of a body 100 formed by two parts, namely a base part 101 and an upper part 102, joined together by a foldable connecting element 103.

  The main body 100 is formed from a single hard plastic material in a single molding process. This device is molded into the form as shown in FIGS. 1A and 1B, and then the upper part 102 is folded around a foldable coupling element 103 to form a base part (hereinafter also simply referred to as “base”) 101. Fit to form an assembled nozzle device. When the base 101 and the upper part 102 are fitted together, the abutting part or surface 102a of the lower surface of the upper part 102 abuts on the abutting part or surface 101a of the upper surface of the base 101. A raised portion 101b on the upper surface of the base component 101 is received in a recess 102b formed in the upper surface of the upper component 102 to define an internal chamber.

  The groove 104 formed in the raised portion 101b of the base 101 constitutes the beginning portion of the outlet passage that leads from the internal chamber to the outlet valve in the assembled nozzle device. The outlet valve is formed by an elastically deformable flap (outlet valve member) 105 formed on the lower surface of the upper part 102 and a recess 106 formed in the opposing abutting surface 101a of the base for receiving the flap. The The flap 105 covers the end of the groove 104 and closes the outlet passage (also referred to as a fluid flow passage) when the base and upper part are joined, but when the pressure in the internal chamber exceeds a predetermined minimum threshold. As will be described later, it is elastically deformed to leave the end of the groove 104 and open the outlet passage. Further, the flap 105 is formed as an extension of the ridge-shaped ridge 112 as will be described later.

  The remainder of the fluid flow passage is formed by grooves and / or recesses 104a, 104b and 104c formed in the abutting surface 101a of the base 101 and corresponding grooves and grooves formed in the abutting surface 102a of the upper part 102. Or the recesses 107a, 107b and 107c are defined by alignment. Portions 104c and 107c are semicircular recesses that form a circular spiral chamber that aligns with each other and induces a rotational flow in the liquid that passes through the outlet passage in use. The liquid is discharged from the spiral chamber through an outlet formed by alignment of the grooves 104d and 107d.

  The base 101 also defines an inlet orifice 108 disposed in a recess 108a formed in the raised portion 101b. The inlet valve is formed by an elastically deformable flap 109 (inlet valve member) formed on the lower surface of the upper part 102 and a recess 108a of the assembled nozzle device that receives it. The flap 109 is elastically biased to a position where it presses against the inlet opening so as to normally close the inlet. The flap 109 elastically deforms away from the inlet opening when the pressure in the internal chamber drops by a predetermined minimum threshold amount below the pressure in the container to which the nozzle device is attached, allowing fluid to flow into the chamber. Inhale inside. The opening of the inlet 108 is formed with a lip for setting a seal by pressing the flap 109. Support ribs 108b and 108c are provided to prevent the flap 109 from exerting excessive force on the lip.

  Positioning columns 110a and 110b formed on the lower surface of the upper part 102 are received in holes 111a and 111b formed in the base, and assist in holding the base and the upper part in close contact with each other. To do. Furthermore, a ridge-shaped ridge 112 surrounding the recess 102b is received in a correspondingly shaped groove 113 formed around the raised portion 101b on the upper surface of the base 101, and sealingly engages the groove. . The ridges 112 and the grooves 113 are closely fitted to help keep the base 101 and the upper part 102 in close contact with each other. The ridges and grooves also form a seal that prevents fluid from leaking out of the chamber and leaching from between the upper part and the base. Further, the extension 112a of the protrusion 112 and the extension 113a of the groove 113 form a seal that also surrounds the outlet passage and the outlet orifice.

  The body 100 also includes an elastically deformable valve member 115 formed on the lower surface of the upper part 102 and an opening 116 formed in the base abutting surface 101a that receives the member 115 when the nozzle device is assembled. An air leakage valve comprising: The opening 116 cooperates with the deformable valve member 115 to define a passage through which air can flow into the container from outside the assembled nozzle device. The distal end of the deformable valve member 115 has a trumpet-shaped spreading rim, and the edge of the rim abuts against the inner wall of the corresponding opening 116 to form an airtight seal. As the pressure in the container decreases as a result of fluid being released through the nozzle device, the pressure difference between the interior of the container and the external environment causes the expansion rim of the valve member 115 to deform inward, thereby causing the external environment to Let air flow into the container. Once the pressure differential has been balanced, the spreading rim returns to its initial elastic biased shape, preventing further air from flowing through the openings 116. Also, if the container is inverted, the product in the container cannot leak through the expanding rim of the deformable valve member, and if pressure is applied, for example by clamping the container, it will expand. It will be understood that the rim more strongly impacts the wall of the opening 116.

  As a modified embodiment, the air leakage valve is disposed in the hole, and when a pressure difference occurs, the air leakage valve is elastically deformed to open the passage, and a columnar body or a flap that allows air to flow into the container from the external environment; You can also

  As a further variant, the elastically deformable upper part 102 can be provided with a narrow slit above the opening similar to the opening 116, and this slit is configured to open when a pressure difference occurs. Can do.

  As yet another modification, the air leakage valve is disposed at a position closer to the elastically deformable upper part 102, and the elastically deformable upper part 102 is pressed downward to discharge the contents in the chamber. Sometimes, the deformable member 115 can be deformed to open the valve opening and allow air to flow into or out of the chamber to balance the pressure differential that exists between the inside and outside of the chamber.

  In use, the operator pushes inwardly on the outer surface of the upper part portion 102b, which is the elastically deformable portion of the body defining the inner chamber. This part 102b of the upper part can be easily pushed in until it hits the upper surface of the base part 101b, thereby compressing the internal chamber defined between them and increasing its internal pressure. When the pressure in the chamber exceeds a predetermined minimum threshold, the flap 105 is displaced (pushed away) from its elastically biased position to define an opening through which liquid can flow through the remainder of the outlet passage to the outlet orifice. , The liquid is ejected from the outlet orifice in the form of a spray. As soon as the pressure in the chamber drops below the predetermined minimum threshold, the flap 105 returns to its elastically biased shape and the volume of the chamber increases. As a result, the pressure in the chamber decreases and the flap 109 of the inlet valve is displaced, allowing additional liquid to be drawn from the container through the inlet valve and into the chamber.

  Another embodiment of a nozzle device adapted to dispense fluid in the form of a spray is shown in FIG. In this example, only the inner chamber 201 and the outlet passage 202 are shown for convenience of illustration. The inlet is not shown in the figure but is actually present.

  The embodiment shown in FIG. 2 consists of a base part 101 made from a hard plastic material and an upper part 102. The upper part 102 includes an abutting surface portion 102a formed of a hard plastic material and an elastically deformable portion 102b formed of an elastically deformable material. The elastically deformable portion 102 b cooperates with the portion 101 b of the base 101 to define the inner chamber 201. In this embodiment of the nozzle device, the base 101 and the portion 102a of the upper part 102 can be formed from a hard plastic material by a double injection molding method in the same molding tool, and then the portion 102b is elastically deformable plastic material. To form on the portion 102a. Next, the assembled nozzle device is formed by fitting the base 101 and the upper part 102 together. As an option (optional), the portion 102a and the base 101 may be molded from the same material and joined together by a foldable connecting element.

  Also in the embodiment shown in FIG. 2, the outlet valve again comprises an elastically deformable flap (outlet valve member) 105 formed on the lower surface of the upper part 102 and an opposing abutting surface of the base that receives it. And a recess 106 formed in 101a. The side wall 106a of the recess 106 is an inclined surface, and the flap 105 is elastically biased so as to abut against the edge of the inclined side wall 106a, and forms a tight seal at the lower end thereof.

  When the pressure in the chamber 201 reaches a predetermined value, the flap 105 is displaced to leave the side wall 106a and form an opening through which fluid can pass. The fluid flows from the outlet valve along the outlet passage to the outlet orifice (not shown), but in the middle of the expansion chamber 204 formed by the alignment recesses formed in the opposing abutting surfaces 102a and 101a. Pass through.

  FIG. 3 shows the upper part 102 and the base 101 of the embodiment of FIG. Although not shown in the figure, also in this embodiment, the upper part 102 has an inlet 108 formed in the base 101 to form an inlet valve, as described above in connection with the previous embodiment, A protruding flap 109 is provided to cover it. In this embodiment, the upper part 102 is composed of the elastically deformable material portion 102b and the hard plastic material frame portion 102a surrounding it as described above. The hard plastic material frame or abutment portion 102a abuts against the abutment portion 101a of the base 101 to define an exit passageway as shown in FIG. As can be seen from FIG. 3, the outlet passage 202 includes a first expansion chamber 204 formed by the alignment of the recesses 301 and 302 and a second outlet chamber formed by the alignment of the recesses 303 and 304.

  In order to ensure a close contact between the upper part 102 and the base 101, a clip 305 formed on the contact surface 102a of the upper part 102 is provided with a recess formed on the contact surface 101a of the base 101 or Engage with the cavity to position the upper part and the base and keep them firmly connected.

  The pumping dispenser shown in FIGS. 1 to 3 has a generally dome-shaped projection on the top surface, and compresses the chamber so that the contents stored therein are discharged through the outlet. The convex shape must be pressed. One problem that can be a disadvantage of such a structure is that the operator must press the dome inward with his finger to ensure that the chamber is fully compressed and fluid is discharged through the outlet. The finger must be placed in the correct position. It has also been found that a relatively high pressure is required to fully press the dome, which can be a further disadvantage. This is because when operating a conventional pump dispenser, a person often applies pressing force at different parts other than the fingers of the hand, for example, using the palm or even the elbow or forearm of the hand. In such a case, it is very difficult to sufficiently compress the dome using, for example, the palm of the hand to initiate fluid ejection from the device.

  4A and 4B illustrate another embodiment of the present invention. Referring to FIG. 4A, this device consists of a base 101 having an abutting part 101a and a chamber defining part 101b, and an upper part 102 having an abutting part 102a and a chamber defining part 102b. The base 101 is coupled by a bendable or bendable connecting element 103.

  The upper part 102 can be folded around the coupling element 103 so that the abutting part 102 a contacts the abutting part 101 a of the base 101. As previously mentioned, grooves 104 and 107 are aligned to define an exit passage, and recesses 301 and 302 and recesses 303 and 304 are aligned to cause two expansions along the length of the exit passage. A chamber is formed. This allows the discharged fluid to be a spray, in which case the outlet passage and the expansion chamber with sufficient force to create a spray with the desired properties (eg, droplet size, dispersion, etc.). The minimum threshold pressure is sufficient as the pressure required to open the outlet valve and discharge fluid to be pumped through. The protrusion 112 is engaged with the corresponding groove 113 to form a seal, and the flap 109 constitutes an elastically deformable valve member that sits over the inlet 108. The device also preferably has an air leak valve as shown in FIGS. 1A and 1B, although not shown in FIG. 4A.

  A trigger type actuator 400 comprising a trigger handle 401 and an engaging portion 402 that is substantially perpendicular to the plane of the handle 401 is formed integrally with the base 101. The trigger 400 is coupled to the base 101 by a connecting element 403 that can be bent or bent. The coupling element 403 extends the engagement portion 402 across the elastically deformable portion 102b of the upper part 102 as shown in FIG. 4B, and extends the handle 401 downward along the front surface of the device. Makes it possible to wrap The trigger 400 is configured to pivot about the coupling element 403 when pulled in the direction of arrow 405 in a conventional manner. This pivoting action causes the upper part surface (elastically deformable portion 102b) 102b to deform toward the opposing surface 101b of the base, thereby compressing the chamber and ejecting fluid in the form of a spray through the outlet of the device. Let The fluid discharged from the outlet orifice passes through a hole 406 formed in the handle 401. When the trigger is released, the elastically deformable portion 102b of the upper part 102 returns to its elastically biased initial position and pushes the trigger back to its initial “inoperative position”.

  The device of the embodiment of FIGS. 4A and 4B can be molded as a single component into the configuration shown in FIG. 4A, and then its upper part is folded back and fitted to the base to form the body of the device. It can then be assembled as a finished device by folding the trigger actuator. This structure is generally preferred because it facilitates device manufacture, that is, it can be manufactured in a single molding operation using a single plastic material.

  However, as a variation, the trigger 400, the base 101, and the abutting portion 102a of the upper part 102 are all formed from a single (identical) material (usually a hard plastic material) in a single molding process. However, the elastically deformable chamber defining portion 102b of the upper part 102 can be an insert formed of an elastically deformable material that can be fitted into the upper part of the device. More preferably, the elastically deformable chamber defining portion of the upper part can be overmolded onto the abutting part 102a of the upper part 102 in a double injection molding process (ie as a second subsequent molding step).

  A variant embodiment of the invention is shown in FIGS. 5A, 5B, 6A, 6B and 7A, 7B. 5A and 5B are perspective views of the base portion 101 of this embodiment, FIGS. 6A and 6B are perspective views of the upper part 102, and FIG. 7A can be fitted to the base 101. It is a perspective view of the trigger type actuator made as described above.

  Referring to FIGS. 5A and 5B, the base 101 has several features described in connection with the previous embodiment, as indicated by the same reference numbers as shown in the previous figure. The previous implementation in that the base 101 has a rear cavity 501 and the inlet 108 is at a higher position relative to the recessed chamber defining recess portion 101b on the upper surface of the base 101. Different from form. The significance of these and other features will be described later.

  Referring to FIGS. 6A and 6B, the upper part 102 is configured to be fitted to the base 101 shown in FIGS. 5A and 5B. When placed on the base, the upper part 102 covers the entire top surface of the base 101 except for the rear cavity 501.

  As described above, when the upper part 102 is fitted to the base 101, the part 101b of the base 101 and the elastically deformable part 102b of the upper part 102 constitute a wall that defines the chamber of the device. However, in this embodiment, unlike the previously described embodiments, portions 101b and 102b are much shallower and flatter than those of the previous embodiment. Accordingly, the amount of deformation of the elastically deformable wall required to bring the elastically deformable wall formed by the portion 102b of the upper part 102 into close contact with the wall formed by the portion 101b of the base 101 facing it is small. Exactly, thereby, the operation of compressing the chamber can be facilitated. Therefore, the dead space remaining after the portion 102b is deformed is reduced, and the overall efficiency of the device is increased.

  As previously mentioned, the elastically deformable flap 109 formed on the upper part 102 fits within a seat 108a surrounding the inlet opening 108 and forms a tight seal against the opening. It is biased elastically so as to be in pressure contact with the opening. A lip is formed around the rim of the inlet opening 108 and the lip forms a ring seal. The rails 108b and 108c prevent excessive pressure from being applied to the lip. The high position of the inlet 108 with respect to the recessed portion 101b also serves to prevent liquid in the chamber from being placed directly on the flap valve member 109 during use, thereby through the flap valve member. The possibility of fluid leakage can be reduced.

  When the upper part 102 and the base part 101 are brought into contact with each other, the contact surface 102 a of the upper part 102 contacts the contact surface 101 a of the base 101. Corresponding grooves and recesses formed in the abutting surfaces 101a and 102a align with each other to define an outlet passage through which fluid can pass from the chamber to the outlet orifice. The exit orifice is formed by a groove that aligns at the edges of the abutting surfaces 101a and 102a.

  An elastically deformable member 115 protrudes from the lower surface of the upper part 102, and as described above with reference to FIGS. 1A and 1B, the upper part and the lower part (base part) are brought into contact with each other. Then, the elastically deformable member 115 is received in the opening 106 of the base 101 to form an air leakage valve.

  The upper part 102 is coupled to the base 101 by a connecting element 103 that can be bent or bent. The connecting element or hinge joint or bridge member 103 is formed of a thin section of plastic and pivots or pivots the upper part 102 to a position for engagement with the base 101 and is engaged when not required. It is possible to swivel to a position out of the range. When the hinge joint is bent, it has an action of pulling apart the two abutting surfaces 101a and 102a by its inherent elasticity. In order to prevent this, the bridge member abuts the upper part and the lower part. Therefore, it is preferable to be configured to expand when folded. This extension imparts pretension to the hinge connecting element and therefore serves to attract the two abutting surfaces rather than trying to pull them apart.

  FIGS. 7A and 7B are adapted so that the upper part 102 shown in FIGS. 6A and 6B can be fitted to the body of a nozzle device formed by coupling to the base 101 shown in FIGS. 5A and 5B. 5 is a perspective view showing a trigger type actuator 400. FIG.

  As in the previous embodiment, the trigger actuator 400 has an engagement portion 402 disposed substantially perpendicular to the handle portion 401. The trigger type actuator 400 also has a mounting portion 701 formed with protrusions 702, 703, and 704. The mounting portion 701 allows the trigger 400 to be moved into the rear cavity 501 of the base 101, wherein the protrusions 702, 703, 704 serve to engage and hold the trigger 400 on the base 101. .

  When the engagement portion of the trigger is in place, it extends across the elastically deformable portion of the body, as in the previous embodiment, and the handle causes the front of the device (ie, fluid to be ejected). Cover the surface with the outlet) and extend downward.

  One drawback of the previous embodiment shown in FIGS. 4A and 4B is that the trigger 400 pivots about the hinge connection element 403 at the rear end of the top of the device. This means that the trigger must be pulled inward and downward in order to trigger the discharge of fluid from the device. In contrast, the modified embodiment shown in FIGS. 5A, 5B, 6A, 6B and 7A, 7B is between the trigger actuator mounting portion 701 and the engagement portion 402, ie, at one end of the top of the device. Rather, it is configured to pivot about a beam 403 located between the longitudinal ends of the top of the device. It is highly preferred that the pivot be formed at or near the middle region of the top of the device.

  One advantage of the trigger 400 shown in FIGS. 7A and 7B is that it extends downward to compress the elastically deformable portion 102b of the chamber as described above to eject fluid stored in the chamber through the outlet. It has been observed that the handle portion 401 can simply be pulled toward the body of the dispenser device in a conventional manner. That is, in order to trigger the release of fluid through the outlet, it is not necessary to pull the handle portion not only towards the body of the device but also at the same time downward.

  FIG. 8 shows yet another variant embodiment of the invention. This embodiment is similar to that shown in FIGS. 4A and 4B, except that it has two chambers formed by the upper part 102 and the dome-shaped recesses 102b, 101b of the base 101. Each chamber has a unique inlet 108 and a unique flap valve member formed by a flap projection 109. This configuration allows two separate fluids to be drawn into the nozzle device from different compartments in the same container. As in the embodiment of FIGS. 4A and 4B, the exit passage is formed by the abutment of surfaces 102a and 101a. That is, each abutting surface 102a, 101a is provided with recesses 301, 302, 303, 304 and grooves that awaken the passage leading from each chamber to the exit orifice when they abut each other. In use, fluid from one chamber passes through the first expansion chamber and is discharged through the outlet orifice of the device after mixing with fluid from the other chamber in the second expansion chamber. In addition, an outlet valve is provided in front of the outlet passage network from each chamber to allow fluid to pass through the outlet passage only when each chamber is compressed and the pressure in the chamber reaches the required value. ing.

  The trigger actuator 400 of this embodiment is substantially the same as that shown in FIGS. 4A and 4B, with the only modification being that the elastically deformable portion 102b of each chamber is moved when the trigger handle 401 is pulled. That is, two engaging projections 801 and 802 are provided for deformation.

  9A-9G show a further variant embodiment of the invention. This embodiment is shown in FIGS. 5A, 5B, 6A, 6B and 7A, except that it has two chambers instead of one so that it can eject two separate fluids from the device in use. , 7B in many respects. However, in this embodiment, unlike the embodiment shown in FIG. 8, fluid discharged from each chamber does not mix in the outlet passage and is discharged through separate outlet passages and outlet orifices.

  It will be appreciated that other features are equivalent to those of the other embodiments, using the same reference.

  Another difference of this embodiment is that the entire device is molded as a single component as shown in FIGS. 9C and 9D and is connected to the base 101 by a base 101 and a connecting element 103 that can be bent or bent. It consists of a combined upper part 102 and a trigger-type actuator 400 connected to the base 101 by means of a connecting element 403 that can be bent or bent, and connected together to form an assembled nozzle device.

  Yet another difference with this embodiment is that the trigger handle has a locking tab 410 that can be selectively advanced and retracted between the trigger handle 401 and the base 101 to prevent accidental actuation of the device. It is provided. To unlock, the tab 410 can be pushed inward so that when the trigger is pulled, the trigger can slide over the tab 410. This lock also makes the child proof (cannot be opened by children or safe for children) so that the operator must first push the locking tab inward. The handle 401 may be configured to be displaced forward. Thus, in order to unlock, the cooperation of the two operations is required.

  FIG. 10 shows yet another variant embodiment of the present invention comprising a base 101, an upper part 102, and a trigger type actuator 400 formed integrally with the base 101. FIG. In this embodiment, unlike the previous embodiment, the chamber defining portion of the upper part 102 is not elastically deformable and defines a piston cylinder 1001 on which a piston 1002 is slidably mounted. The piston 1002 is connected to the engaging portion 402 of the trigger type actuator 400 and is elastically biased at the portion shown in FIG. When the trigger handle 401 is pulled, the piston 1002 is displaced downward, thereby reducing the volume of the chamber 201 and discharging the fluid in the chamber through the outlet passage 202. When the trigger handle 401 is released, the piston 1002 returns to its elastically biased position, and additional fluid is drawn into the chamber 201 through the inlet.

  The embodiment shown in FIG. 10 also preferably includes the seal, air leak valve, outlet valve and inlet valve described in connection with the previous embodiments.

  It should be understood that the description of the invention described in connection with the embodiments shown in the accompanying drawings is provided by way of example and should not be construed as limiting the scope of the invention.

FIG. 1A is a perspective view of one embodiment of a nozzle device consisting of a body formed of two components and adapted to dispense fluid in the form of a spray. 1B is a perspective view from another angle of the device shown in FIG. 1A. FIG. 2 is a schematic cross-sectional view of a modified embodiment of a nozzle device consisting of a body formed from two components and adapted to dispense fluid in the form of a spray. FIG. 3 is a perspective view of the upper part 102 of the device shown in FIG. FIG. 4A is a perspective view illustrating an exploded embodiment of a nozzle device according to the present invention. 4B is a cross-sectional view of the assembled nozzle device shown in FIG. 4A. FIG. 5A is a perspective view of the base portion 101 of a modified embodiment of the present invention. FIG. 5B is a perspective view from another angle of the base portion shown in FIG. 5A. 6A is a perspective view of the upper part 102 that can be fitted to the base portion 101 shown in FIGS. 5A and 5B. 6B is a perspective view from another angle of the upper part shown in FIG. 6A. FIG. 7A is a perspective view of a trigger type actuator that can be fitted to the base 101 shown in FIGS. 5A and 5B. FIG. 7B is a perspective view from another angle of the trigger type actuator shown in FIG. 7A. FIG. 8 is a perspective view showing an embodiment of the nozzle device according to the third aspect of the present invention in an exploded state. 9A and 9B are perspective views of a nozzle device according to a variant embodiment of the invention. 2C, 2D, and 2E are perspective views of the nozzle device shown in FIGS. 2A and 2B, showing the components separated to show the internal mechanism. 2F and 2G are enlarged perspective views showing a portion of the nozzle device shown in FIG. 2C. FIG. 10 is a cross-sectional view of another embodiment of the present invention.

Explanation of symbols

100 Main body 101 Base portion, base 101a Contact surface, contact portion 101b Raised portion, chamber defining recessed portion, chamber defining portion, dome-shaped recessed portion, recessed portion 102 Upper part 102a Contact surface, contacting portion, frame portion 102b Chamber Defined part, recessed part, elastically deformable part 103 connecting element, bridge member 104a, 104b, 104c, 104d recess, groove 105 flap 106a inclined side wall, side wall 106 recess, opening 107a, 107b recess 108b, 108c rail 108 inlet orifice , Inlet opening, inlet 108a recess, seat 108b, 108c support rib 109 flap, flap valve member, flap projection 110a, 110b columnar body 111a, 111b hole 112 ridge 112a extension 113 groove 113a extension 115 elastic deformation Existing member, Deformable member, Valve member 116 Opening 201 Internal chamber, chamber 202 Exit passage 204 Expansion chamber 301, 302, 303, 304 Recess 305 Clip 400 Trigger, trigger type actuator 401 Trigger handle, handle portion 402 Engagement portion 403 Beam, hinge connection element, connection element 406 hole 410 tab 501 rear cavity 701 part 702, 703, 704 protrusion 801, 802 engagement protrusion 1001 piston cylinder 1002 piston / outlet passage

Claims (51)

A pumping nozzle device adapted to dispense fluid from a container having a body defining an internal chamber, the chamber being capable of inhaling fluid into the chamber; An outlet through which the fluid present in the chamber can be discharged from the nozzle, wherein the inlet has a predetermined minimum at least a pressure in the chamber lower than a pressure in the container in which the device is mounted; Including an inlet valve adapted to allow fluid to flow through the inlet into the chamber only when it is reduced by a limited threshold amount, wherein the outlet has an external pressure at the outlet. Only when a predetermined minimum threshold amount is exceeded, fluid can flow out of the chamber and be ejected from the nozzle. Includes made the outlet valve, at least a portion of said body defining said chamber,
(I) elastically deforming from an elastically biased initial shape to an expanded or deformed shape in response to application of pressure, whereby at least a portion of the body expands or deforms from the initial shape; The volume of the chamber defined by the portion of the body decreases as it is deformed to increase the pressure in the chamber by reducing the volume and allowing fluid to flow out through the outlet. And
(Ii) Thereafter, when the applied pressure is removed, it returns to its elastically biased initial shape, thereby increasing the volume of the chamber and allowing fluid to enter the chamber through the inlet valve. Configured to reduce the pressure in the chamber to be inhaled,
The nozzle device is further configured to engage a trigger handle that can be pulled by an operator and to engage the portion of the body to deform it from its elastically biased position when the trigger handle is pulled. A pumping nozzle device comprising a trigger type actuator comprising an engaging portion. A pumping nozzle device adapted to dispense fluid from a container having a body defining an internal chamber, the chamber being capable of inhaling fluid into the chamber; An outlet through which the fluid present in the chamber can be discharged from the nozzle, wherein the inlet has a predetermined minimum at least a pressure in the chamber lower than a pressure in the container in which the device is mounted; Including an inlet valve adapted to allow fluid to flow through the inlet into the chamber only when it is reduced by a limited threshold amount, wherein the outlet has an external pressure at the outlet. Only when a predetermined minimum threshold amount is exceeded, fluid can flow out of the chamber and be ejected from the nozzle. Includes made the outlet valve, at least a portion of said body defining said chamber,
(I) The elastically biased initial shape is displaced to an expanded or deformed shape in response to application of pressure, thereby deforming the portion of the body from the initial shape to the expanded or deformed shape. The volume of the chamber defined by the portion of the body decreases as the volume decreases, the pressure in the chamber increases by reducing the volume and fluid is allowed to flow out through the outlet;
(Ii) thereafter, when the applied pressure is removed, it returns to the initial shape, thereby increasing the volume of the chamber so that fluid is drawn into the chamber through the inlet valve; Configured to reduce the pressure in the chamber,
The nozzle device is further configured to engage a trigger handle that can be pulled by an operator and to engage the portion of the body to displace it from its elastically biased position when the trigger handle is pulled. A pumping nozzle device comprising a trigger type actuator comprising an engaging portion.   3. Nozzle device according to claim 1 or 2, characterized in that it consists of at most 6 separate components.   4. A nozzle device according to claim 3, wherein the device consists of at most three separate components.   5. A nozzle device according to claim 3 or 4, characterized in that the device consists of two separate components.   A nozzle device according to claim 3 or 4, characterized in that the device consists of a single component.   When the operator pulls the trigger handle, a part of the engaging part engages with the elastically deformable part of the main body and elastically deforms the trigger type actuator, whereby the chamber is The nozzle device according to any one of claims 1 to 6, wherein the nozzle device is configured to compress and discharge a fluid existing in the chamber from the outlet of the device.   The nozzle device according to any one of claims 1 to 5 and 7, wherein the trigger type actuator is a separate part configured to be fitted to a main body of the nozzle device.   The nozzle device according to claim 1, wherein the trigger type actuator is formed integrally with the nozzle device.   The trigger-type actuator applies the pressure to the elastically deformable portion of the body of the nozzle device by pulling the trigger handle to pivot the engagement portion about a pivotal connection point. The nozzle device according to any one of claims 1 to 9, wherein the nozzle device is pivotally attached to the main body.   The nozzle device according to claim 10, wherein the trigger type actuator is configured to pivot around an edge of an upper surface of the nozzle device.   The nozzle device according to claim 10, wherein the trigger type actuator pivots at a position close to a center of the upper surface of the nozzle device.   The nozzle device according to claim 1, wherein the trigger type actuator is formed integrally with the main body.   The trigger actuator is coupled to the body of the nozzle device by a foldable coupling element and is pivoted about the coupling element so that the portion of the body can be deformed. The nozzle device according to claim 13.   15. The nozzle device is adapted to be fitted into an opening of the container so that fluid stored in the container can be distributed in use. The nozzle device according to any one of the above.   15. The nozzle device according to any one of claims 1 to 14, wherein the nozzle device is formed integrally with the container so that fluid stored in the container can be distributed in use. The described nozzle device.   17. The body according to any one of the preceding claims, wherein the body comprises two or more interconnected parts, the parts being joined together to define the chamber. The nozzle device according to item 1.   The nozzle device of claim 17, wherein the chamber is defined between two interconnected parts.   19. A nozzle device according to claim 17 or 18, wherein one of the parts is a base part and the other part is an upper part.   20. A nozzle device according to claim 19, wherein the upper part constitutes an elastically deformable part of the body defining the chamber.   21. A nozzle device according to any one of the preceding claims, wherein the outlet comprises the outlet valve, an outlet orifice, and an outlet passage connecting the chamber to the outlet orifice.   22. A nozzle device according to any preceding claim, wherein the at least two interconnected parts defining the chamber also define at least a portion of the outlet passage.   23. A nozzle device according to any one of the preceding claims, wherein the inlet, inlet valve, outlet, outlet valve, and chamber are all defined by the body.   The nozzle device according to any one of claims 1 to 23, further comprising locking means for preventing fluid from being accidentally discharged.   The nozzle device according to claim 24, wherein the locking means is formed integrally with the main body.   When there is a pressure difference between the inside of the container and the external environment, air can be passed to balance the pressure difference, but fluid will leak out of the container when the container is inverted. The nozzle device according to any one of claims 1 to 25, further comprising an air leakage valve that prevents the air leakage.   27. A nozzle device according to any one of claims 1 to 26, wherein a liquid bolus is distributed and supplied at the outlet.   27. A nozzle device according to any one of the preceding claims, wherein the outlet of the device is adapted to dispense fluid in the form of a spray.   Having an outlet passage, wherein the outlet passage comprises one or more internal spray modification mechanisms configured to reduce the size of the liquid droplets dispensed through the outlet orifice of the nozzle device in use. 29. A nozzle device according to claim 28.   The internal spray modification mechanism includes one or more expansion chambers, one or more swirl chambers, and one or more internal spray orifices (adapted to create a spray of fluid flowing in the outlet passage). 30. The nozzle device of claim 29, wherein the nozzle device is selected from the group consisting of one or more venturi chambers.   29. The outlet passage and outlet orifice are in the form of a separate single unit or insert connected to the outlet of the chamber to constitute the outlet of the nozzle device. Nozzle device.   The insert is connected to the body of the device by a hinge so that it can be selectively pivoted or pivoted to a required position for use, and can be pivoted out of the required position when not needed. The nozzle device according to claim 31.   The outlet passage comprises one or more internal spray modification mechanisms configured to reduce the size of the liquid droplets dispensed through the outlet orifice of the nozzle device in use. The nozzle device according to claim 30 or 31.   The internal spray modification mechanism includes one or more expansion chambers, one or more swirl chambers, and one or more internal spray orifices (adapted to create a spray of fluid flowing in the outlet passage). 34. The nozzle device of claim 33, wherein the nozzle device is selected from the group consisting of one or more venturi chambers.   The nozzle device according to any one of claims 2 to 34, wherein the portion of the main body that is displaceable is a piston mounted in a piston cylinder.   The nozzle device according to any one of claims 1 to 34, wherein the portion of the main body has a bellows shape.   37. A pumping nozzle device according to any one of claims 1 to 36 attached to an opening of a container such that fluid stored in the container in use can be dispensed from the container through the nozzle device. Container with.   37. A pumping nozzle device according to any one of claims 1 to 36 integrally formed so that fluid stored in the container in use can be dispensed from the container through the nozzle device. container. 37. A method of manufacturing a nozzle device according to any one of claims 1-36, comprising a body consisting of at least two coupling parts, and further comprising a trigger actuator.
(I) molding the at least two parts of the body and the trigger actuator;
(Ii) joining the at least two parts of the body together to form the body of the nozzle device;
(Iii) bringing the trigger actuator to a position that engages the body of the nozzle device;
A method consisting of:   40. The method of claim 39, wherein the at least two parts of the body are molded separately.   41. A method according to claim 39 or 40, wherein the at least two parts of the body are formed from the same material or from different materials.   By means of a connecting element that integrally forms two or more of the parts of the body and allows the two integrally formed parts to abut when assembling the nozzle device 40. The method of claim 39, wherein the methods are coupled together. 37. A method of manufacturing a nozzle device according to any one of claims 1 to 36, comprising a body consisting of at least two interconnected parts and a trigger actuator.
(I) forming a first part of the at least two parts of the main body in a first processing step;
(Ii) forming a main body of the nozzle device by forming a second part of the main body on the first part in a second processing step, and forming the main body of the nozzle device;
(Iii) coupling the trigger actuator to the body of the nozzle device;
A method consisting of:   44. The method of claim 43, wherein the overmolding is performed on site. 37. A method of manufacturing a nozzle device according to any one of claims 1-36, comprising a body consisting of at least two coupling parts, and further comprising a trigger actuator.
(I) forming a first part of the at least two parts of the body together with a base or frame for a second part of the at least two parts in a first processing step;
(Ii) forming over the base or frame to form a second part of the assembled nozzle device;
(Iii) coupling a trigger actuator to the body of the nozzle device;
A method consisting of:   The base or frame is coupled to the first part by a foldable connecting element so that it can be folded back and fitted to the first part during assembly of the body of the nozzle device. Item 45. The method according to Item 45.   47. A method according to claim 45 or 46, wherein the overmolding step is performed prior to fitting the base or frame to the first part to form the body of the nozzle device.   47. A method according to claim 45 or 46, wherein the covering step is performed after the base or frame is fitted to the first part to form the body of the nozzle device. 37. A method of manufacturing a nozzle device according to any one of claims 1-36, comprising a body consisting of at least two coupling parts, and further comprising a trigger actuator.
(I) forming a first part of the at least two parts of the body together with a frame or base for the second part of the at least two parts in a first processing step;
(Ii) positioning the insert portion of the main body such that when the frame of the second part of the main body is coupled to the first part of the main body, the insert portion is held in the frame; Forming the second part of the body with the frame and the frame;
(Iii) coupling a trigger actuator to the body of the nozzle device;
A method consisting of: 2. A body comprising at least two coupling parts and a trigger type actuator, wherein the coupling part and the trigger type actuator are connected to each other by a coupling element such that the coupling part is movable relative to each other. A method for producing the nozzle device according to any one of -36,
(I) forming each component of the main body and the trigger type actuator together with the connecting element in a single forming step;
(Ii) moving the at least two parts of the body to a position to engage each other to form the body of the nozzle device;
(Iii) bringing the trigger actuator to a position that engages the body of the nozzle device;
A method consisting of:   51. A method according to any one of claims 39 to 50, wherein a foaming agent is charged into the mold together with the plastic material.

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